I have a basic PA with an eight track mixer desk / power amp. Having bumbled along for years I feel it is about time I found out how to use it properly. I need to know things like.....

How does adjusting the various frequencies affect the sound?
To what level should each of the various volume controls be set (instrument/channelslider/channelgain/ampgain)?
How do I prevent/cure feedback?
What sort of mikes should be used in what situations?
What is the best set-up to have?

I would preferably like to go on a course (weekend/evenings), or have some one-to-one training, with a recommended sound professional who is used to dealing with acoustic folk instruments.

I am based in Leicestershire but will travel for something that meets my needs.

Any one out there know of anything or anyone suitable?

Thanks,

Richard Ashe